Spare chipboard cupboard ends (Dallow LU1)

Two spare Melamine-faced chipboard ends for a piece of furniture

85cm x 85cm
With a triangle cut in the corner with 62cm length
2cm thick

Attachments indicating that it's for a substantial cupboard of some sort

Could be used and cut into a shelf etc

Please see my other listings for spare wood mostly chipboard I've found around the house that I purchased.
Clearly from a furniture there doesn't seem to be a complete set to make anything.